Thread-advancing reel



March 12, 1946. w, sTANLEY 2,396,297

THREAD ADVANCING REEL 2 Sheets-Sheet 1 Filed July 29, 1943 INVENTOR. Fey/mo W. STANLEY Arron/E1 Mam}! 1946- R. w. STANLEY THREAD ADVANCINGREEL Filed July 29, 1943 2 Sheets-Sheet 2 n MM mm J WW 0 M H w A TTOANEXPatented Mar. 12, 1946 THREAD-ADVANCING REEL Richard W. Stanley, DrcxelHill, Pa., assignor to American Viscose Corporation. Wilmington, DeL, acorporation of Delaware Application July 29, 1943, Serial No. 486,543

4 Claims.

This invention relates to thread-advancing reels which may be used forthe production of a yarn store which is continuously advanced axially ofthe periphery of the reel during which time it may be subjected to fluidtreatment in the manner and for the purposes conventional in the art.

It is a particular object of this invention to provide an improvedthread-advancing reel. It is a further object of this invention todevise a reel which is adaptable to either a cantilever or double-endsupported structure. It is a further object of the invention to providea reel of this type based upon a structural principle, which, whenembodied in a reel 01' large axial length, results in substantiallyuniform efficiency in thread-advancing action throughout the length orthe reel, and at the same time is adapted to operation at high speeds ofrotation of the reel. Further objects and advantages of the inventionwill be apparent irom the drawings and description thereoi hereinafter.

In the drawings, illustrative of the invention- Figure 1 is amid-section taken axially through one embodiment o! the reel of thisinvention;

Figure 2 is a section taken on line 11-11 of Figure 1;

Figure 3 is a section taken on line III-III of Figure 1;

Figure 4 is a side view partially in cross-section oi the cantileverform the reel 01' this invention;

Figure 5 is an end view of the cantilever form shown in Figure 4; and

Figure 6 is a cross-section taken on line VI-VI of Figure 4.

Referring first to Figures 1 to 3, the threadadvancing reel comprisestwo sets of interdigitating bars, the bars 2 or one set alternating withand being spaced from and between the bars 3 of the other set. One ofthe sets comprising bars 2 is formed by suitably slotting the peripheryof a housing formed or the telescoping hollow cylindricalsmembers l andI secured together by the JOBS This set of bars 2 is rotatably mountedconcentrically on a stationary shaft 1 by means of ball bearings I. Theopposite ends of the shaft are provided with cap! 8 suitably securedthereto, as bythe screw threads shown, one being left hand and the otherbeinz richt hand to prevent unscrewing during rotation of the reel. Theoutwardly projecting portions of the caps 9 have a non-circularperiphery and are adapted to be supported in suitable supports orhangers i0 having sockets of co cross-section to pre vent rotation.Packings ll may be provided to prevent access of liquids to the bearings01' the concentric cage or housing.

The other set of bars 3 are divided into several groups (three beingshown) those of each group being formed integrally as radial projectionsfrom a casting occupying roughly a segment of a circle. Since thesethree units are identical, only one is described. The segment has atransverse web I! extending in a plane substantially at right angles tothe axis of the reel. The web has an opening l3 which is sufficientlylarge to allow plenty of clearance about the transverse bolts 8 whichsecure the housing or cage carrying the concentric bars 2. As shown inFigure 3, the web I2 is provided with a pair or bosses H extendingaxially to both sides of the web. The bosses II have bores within whichpins l5 are secured by nuts it. The enlarged ends I! at the left of thepins l5 have shoulders bearing against a yoke l8 extending between thepair of bosses. The ends I! are slidably mounted in bores through thespider l9 and the other ends of pins l5 are slidably mounted in similarbores of spider 20. A spring 2| within a recess in spider 20 midwaybetween the bores pin-receiving therein normally presses the entiresegment assembly to the left. A roller 22 secured to the yoke I8 bearsconstantbr against the annular cam surface 23 of the fixed cam 2.. Thespiders l9 and ii are clamped in their appropriate positions upon thesleeve 25 by nut 28, spacer sleeve 21 being inserted between thespiders. The sleeve 25 is carried by bushings 2B and 2B, which in turnare carried by the centrally located eccentric portion 30 or thestationary shaft. A band 35 of member I beyond the bars 3 and havingreduced diameter may serve as a surplus thread-collecting ring.

Flexible sealing membranes 3! and 32 may be secured to the segments, thecentral sleeve assembly, and the concentric cage members (as shown)where it is desired to use the reel for fluid treatment or yarns and thelike, and to prevent the entrance oi the fluid into the working parts ofthe reel.

In operation. the reel is supported in suitable supports id formaintaining the central shaft 1 stationary, and the concentric cage orbars 2 is driven by means or a gear 33 which meshes with gear teeth 3iformed or secured to one end of the concentric cage. The rotation of theconcentric cage comprising bars 2 causes the rotation of the segmentassemblies of bars I about the eccentric shaft 30. As a result or thefact that bars 8 rotate about an axis which is ollset from the axis ofthe bars 2, the thread-carrying surfaces of bars 3 alternately projectoutwardly and recede inwardly from the periphery formed by bars 2. Atthe same time, rotation of the segments carrying bars 3 with respect tothe earn 2 causes axial motion thereof with respect to the bars 2. Thearrangement of the eccentric portion 30 of the shaft and the cam surface23 is so selected that shortl after bars 3 are caused to projectoutwardly from the periphery of the bars 2, the rise on the cam 24shifts the bars 3 axially, which axial shift is maintained by a suitabledwell in the cam until after bars 3 have been caused to recede below theperi heral surface of bars 2, after which a drop in the cam surface 23permits the spring II to return the segment to its original positions.

Referring to Figures 4, and 6, a cantilever form of reel is showncomprisin a concentric cage of bars 2 and the eccentrically mounted bars43. Bars 42 are formed integral with an arouate disc 44 which is securedfor rotation with shaft 45, a gear 48 bein keyed to the shaft forreceiving and imparting rotatory motion thereto The shaft is mounted forrotation with a suitable framework comprising the members H and B. Asleeve 49 is secured to the frame member 48 by the nut 54 and in turn acam 58 is keyed to the sleeve. thereby assuring the stationary positionof cam 50. A housing comprising member 51 and flange 62 is mounted forrotation about the cam and encloses a spider having a plurality of axialbores if carrying plungers 55. The spider 53 rotates about the fixedsleeve 49, which has a cylindrical peripheral surface 56 which iseccentric to shaft 5. suitable bushings 51, 58, 59 and 80 being providedbetween the relatively rotating parts. Transversely of the central boreof the plunger 55, a pin Bl extends through slots 62 and is secured tothe walls of the spider 53. To the outwardly projecting end oi theplunger 55 is secured a segmental member having a plurality 01' bars 43.A spring 53 bears against pin 62 and against the bottom of the bore inthe plunger 55 tending to bias the plunger with the segment carryingbars 43 to the right as viewed in Figure 4. The plunger 55 at the endopposite to that carrying the segment is provided with a roller 85 whichbears against the cam surface 65 of the cam Bil. A flexible sealingmember 8'! may be provided between the central portion of the spider 44,the segment members carrying bars 43, and the housing 5i and 52.

Operation of the cantilever form of the device is similar to that of theform supported at both ends. Rotation of shaft 45 causes rotation ofbars 42 which rotation is transmitted thereby to the segment members andthe spider member 63. Rotation of the spider member 53 about theeccentric surface 58 causes the alternate projection of bars 43 abovethe peripheral surface of bars 42 and recession thereof below theperipheral surface of bars 42. Simultaneously the action of cam surface66 causes the axial motion or bars 43 in alternate directions at thetime of protrusion and recession of bars II with respect to theperipheral surface defined by bars 42.

Whereas the actuated bars I and l! of the invention have been shownassembled in groups upon a plurality of segmental members, it is to beunderstood, that each of the bars I or 43 r spectively may be mountedsep rately d m y be provided with a cam follower to eifect itsindividual actuation axially of bars 2 and it respectively by means ofthe fixed cam.

The construction oi the reel of this invention is fundamentally simple,provision for axial movement and the spring control thereof serving toprovide a motion which is smooth, positive and definitely controlled.The eccentric mounting of the actuating bars provides for uniformlyemcient thread-advancing action throughout the length of the reelregardless of its axial length.

The various parts of the reel may be made of any desired material. Whereit is desired to subiect the filamentary material or yarns being handiedto liquids which tend to be corrosive in nature, the various elements ofthe reel, especially the parts exposed to the liquid, may be made ofsuch materials as Durez, Bakelite, stainless steel or the like.

Because of the fact that the bar members of the actuated cage (that is.the non-concentric case) are mounted upon an eccentric surface, theaxial length of the reel may be made as great as desired, withoutdetrimentally influencing the thread-advancing efiiciency along thesurface of the reel.

While it has been stated above that the 'projecting members 5 of thereel of Figures 1 to 3 are generally supported in fixed positions bysuitable bearings, a variation in the frequency of the advancing actionof the actuating bars 3 may be obtained by rotating the central shafthaving the concentric portions 1 and the eccentric portion 3| about theaxis of portions 1 in either direction with respect to the direction ofrotation of the concentric cage carrying bars 2. By rotating thiscentral shaft in the same direction, the frequency is decreased, whilerotation of this central shaft in th opposite sense increases thefrequency.

While specific embodiments of the invention have been described andillustrated, it is to be understood that changes and variations may bemade without departing from the spirit and scope of the invention asdefined by the appended claims.

I claim:

1. Reel mechanism comprising a set of spaced, longitudinally extendingbar members rotatably mounted as a unit, a second set of spaced,longitudinally extending bar members alternating with those of the firstset, supporting means for the second set rotatably mounted on an axiseccentric to the axis of rotation of the first set, the bar members ofthe second set being axially slidabie with respect to the supportingmeans therefor, means for imparting relative rotation between the barmembers and the eccentric axis, an annular cam secured in fixedrelationship to the eccentric axls. cam follower rollers on the barmembers of the second set and resilient means cooperating with the barmembers of the second set to control the axial motion thereof inco-operation with the cam.

2. Reel mechanism comprising a set of spaced. longitudinally extendingbar members rotatably mounted as a unit, a second set of spaced,longitudinally extending bar members alternating with those of the firstset, a stationary member having an external peripheral surface eccentricto the axis of rotation of the first set. supporting means for thesecond set of bar members rotatably mounted on the eccentric surface.the bar members of the second set being axially slidable with respect tothe supporting means therefor, means for rotating the sets of barmembers, an annular cam secured in fixed relationship to the eccentricaxis, cam follower rollers on the bar member: of

the second set and resilient means co-operatlng with the bar members ofthe second set to control the axial motion thereof in co-operation withthe cam.

3. Reel comprising a frame, a shaft rotatabiy moimted m the frame, astationary sleeve mounted about the shaft and having an eccentricexternal bearing surface, a stationary annular earn, a set of spaced,longitudinally extending bar members secured for rotation with theshaft, supporting means for a. second set of longitudinally extendingbar members alternating with those of the first rotatably mounted on theeccentric bearing portion of the sleeve. said supporting meanscomprising axially slidahle members each carrying at one end thereof aroller follower and at the other end at least one of the her members ofthe second set and spring means ,for preming said axially slidablemembers in co-operative engagement with the cam.

4. A cantilever reel. supported at one end only thereof comprising aframe, a shaft rotatably mounted in the frame, a. stationary sleevemounted about the shaft having an eccentric external bearing surface, astationary annular cam, a set of spaced longitudinally extending barmembers, said bar members being supported on a substantialiy closed websecured for rotation with the shaft to its outermost end, supportingmeans for a. second set oi spaced longitudinally extending bar membersalternating with those of the first rotatably mounted on the eccentricbearing portion of the sleeve, said supporting means comprising axialyslidable members each carrying at one end thereof a part of the barmembers of the second set and at the other end thereof a roller followerand spring means for pressing said axially slidable members intoco-operative engage ment with the cam.

RICHARD W. STANLEY.

Certificate of Correction Patent No. 2,396,297

March 12, 1946.

RICHARD W. STANLEY It is hereby certified that error appears in theprinted specification of the above numbered patent requiring correctionas for "bores pin-receiving read pin-receiving 1) follows: Page 1,second column, line 26. ores; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Oflice.

Signed and sealed this 4th day of June, A. D. 1946.

LESLIE FRAZER,

First Assistant Commissioner of Patents.

the second set and resilient means co-operating with the bar members ofthe second set to control the axial motion thereof in co-operation withthe cam.

3. Reel mechanism comprising a frame, a shaft rotatabiy moimted m theframe, a stationary sleeve moimted about the shaft and having aneccentric external bearing surface, a stationary annular earn, a set ofspaced, longitudinally extending bar members secured for rotation withthe shaft, supporting means for a. second set of spaced, longitudinallyextending bar members alternating with those of the first rotatablymounted on the eccentric bearing portion of the sleeve. said supportingmeans comprising axially slidahle members each carrying at one endthereof a roller follower and at the other end at least one of the hermembers of the second set and spring means ,for preming said axiallyslidable members in co-operative engagement with the cam.

4. A cantilever reel. supported at one end only thereof comprising aframe, a shaft rotatably mounted in the frame, a stationary sleevemounted about the shaft having an eccentric external bearing surface, astationary annular cam, a set of spaced longitudinally extending barmembers, said bar members being supported on a substantialiy closed websecured for rotation with the shaft to its outermost end, supportingmeans for a second set oi spaced longitudinally extending bar membersalternating with those of the first rotatably mounted on the eccentricbearing portion of the sleeve, said supporting means comprising axialyslidable members each carrying at one end thereof a part of the barmembers of the second set and at the other end thereof a roller followerand spring means for pressing said axially slidable members intoco-operative engage ment with the cam.

RICHARD W. STANLEY.

Certificate of Correction Patent No. 2,396,297

March 12, 1946.

RICHARD W. STANLEY It is hereby certified that error appears in theprinted specification of the abovc numbered patent requiring correctionas for "bores pin-receiving read pin-receiving 1) follows: Page 1,second column, line 26. ores; and that the said Letters Patent should beread with this correction therein that the same may conform to therecord of the case in the Patent Oflice.

Signed and sealed this 4th day of June, A. D. 1946.

LESLIE FRAZER,

First Assistant Commissioner of Patents.

